This Week in Compressive Sensing

http://nuit-blanche.blogspot.com/2011/09/this-week-in-compressive-sensing.html

by ColinWright • 15 years ago

13 2 15 years ago

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erkmene• 15 years ago

It may be obvious for electric and electronics engineers, but thank you for introducing me to this concept. Through Wikipedia, I found some very interesting applications. 1-bit camera ( http://dsp.rice.edu/cscamera ) particularly.

thwest• 15 years ago

It is not at all obvious how compressive sensing works! Even if you have a background in signal processing or linear algebra. Most people approach linear algebra to solve over-determined systems of equations, not under-determined systems. But it turns out you can validly pose the problem if you have some a priori knowledge of the structure of your signal.

Actually, the camera uses a single pixel, not a single bit. The measurements from pixel are from a 16-bit ADC so we get pretty good grayscale information. There are some single bit compressive sensing implementations, often used for radar where the SNR is low.

There's even a startup that is building commercial implementations of single pixel cameras. We work with the Rice researchers you linked to. http://www.inviewcorp.com/

This Week in Compressive Sensing

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